(19)
(11) EP 1 463 870 A2

(12)

(88) Date of publication A3:
17.06.2004

(43) Date of publication:
06.10.2004 Bulletin 2004/41

(21) Application number: 02805577.0

(22) Date of filing: 12.12.2002
(51) International Patent Classification (IPC)7: E21B 23/00
(86) International application number:
PCT/US2002/039638
(87) International publication number:
WO 2003/053125 (03.07.2003 Gazette 2003/27)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 12.12.2001 US 15418

(71) Applicant: OCEANEERING INTERNATIONAL, INC.
Houston, TX 77041 (US)

(72) Inventors:
  • REAUX, James, R.
    Brookshire, TX 77423 (US)
  • BENSON, Dan, T.
    Tomball, TX 77375 (US)
  • THORNE, Donald, L.
    New Iberia, LA 70562 (US)

(74) Representative: W.P. Thompson & Co. 
Coopers BuildingChurch Street
Liverpool L1 3AB
Liverpool L1 3AB (GB)

   


(54) SYSTEM AND METHOD FOR LESSENING IMPACT ON CHRISTMAS TREES DURING DOWNHOLE OPERATIONS INVOLVING CHRISTMAS TREES